Acer Desktop brand new got stuck sometimes at BIOS loading screen.

From now and then our Acer Desktop computer, a brand new one, with 8 Gb Ram, 256 SSD, I5 2nd generation processor gots stuck for real in the BIOS loading screen. In the lower third of the screen a text is depicted. Something like : "Press F8 to enter BIOS setup. Press F12 to enter Boot Menu". And of course nothing happens if a key is pushed. The only solution to this issue is to turn off the system and afterwards turn it on again. Then, most of the times, everything goes as expected and the system runs smoothly.Anyone has experienced something similar and found any solution?